# et:ts=4
# portmirror.tcl
#
# $Id$
#
# Copyright (c) 2006 Paul Guyot <pguyot@kallisys.net>,
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
# 3. Neither the name of Apple Computer, Inc. nor the names of its
#    contributors may be used to endorse or promote products derived from
#    this software without specific prior written permission.
# 
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

package provide portmirror 1.0
package require portutil 1.0
package require Pextlib 1.0
package require portfetch 1.0
package require portchecksum 1.0

set com.apple.mirror [target_new com.apple.mirror mirror_main]
target_runtype ${com.apple.mirror} always
target_state ${com.apple.mirror} no
target_provides ${com.apple.mirror} mirror
target_requires ${com.apple.mirror} main
#target_parallel ${com.apple.mirror} yes

# Mirror is a target that fetches & checksums files and delete them
# if the checksum isn't correct.
# It also records the path in a database.

proc mirror_main {args} {
	global fetch.type portname mirror_filemap ports_mirror_new portdbpath
	
	set mirror_filemap_path [file join $portdbpath distfiles_mirror.db]
	if {![info exists mirror_filemap]
		&& [info exists ports_mirror_new]
		&& $ports_mirror_new == "yes"
		&& [file exists $mirror_filemap_path]} {
		# Trash the map file if it existed.
		file delete -force $mirror_filemap_path
	}
	
	filemap open mirror_filemap $mirror_filemap_path

	# Check the distfiles if it's a regular fetch phase.
	if {"${fetch.type}" == "standard"} {
		# fetch the files.
		fetch_init $args
		#fetch_start
		fetch_main $args

		# checksum the files.
		#checksum_start
		if {[catch {checksum_main $args}]} {
			# delete the files.
			fetch_deletefiles $args
		} else {
			# add the list of files.
			fetch_addfilestomap mirror_filemap
		}
	}

	# close the filemap.
	filemap close mirror_filemap
}